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Ome Formation (Juen, 1964) Ueki and Sakai, 2007

• Type locality: Left bank of Tamagawa river, Hamura city - Higashiome, Ome city, Tokyo
• Coherent formation
• Higher Terrace Deposit
• middle Pleistocene (- MIS 2)

• Sedimentary facies: Fluvial
• Sedimentary facies: Incised-valley fill deposit
• Lithofacies: Sands, Gravels
• Sedimentary structures: Cross-stratification

• Thickness: 20 - 50 m
• Upper limit: Unconformity (Aoyagi Formation, Haijima Formation, Tokorozawa Formation, Imokubo Formation, Tachikawa 2 Formation, Amagase Formation, Chigase Formation)

• Distribution: Tamagawa river, Hamura city - Higashiome, Ome city, Tokyo; Shiromaru, Okutama city, Nishitama county, Tokyo; Higashiyamato city - Kodaira city - Fussa city - Akishima city - Tachikawa city, Tokyo; Hongo, Tokorozawa city, Saitama pref.; Ina - Kamiyotsugi, Akiruno city, Tokyo

• Ueki and Sakai (2007) Geology of the Ome District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 189p. (in Japanese with English abstract 5p.)